Surname Kostovič (Kostovič 
, Костович 
) , globally, is a very rare family name. The last name Kostovič is habitual in Eastern Europe, particularly Czechia, where it is a rare surname, Ukraine, where it is a very rare surname, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kostovič | Czechia |
| Костович | Russia, Ukraine |
| vladimír kostovič SK (b. 1926) |
|